Finding the Fourth Proportional to 145,822.26, 201,234.70 and 78,754.26
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Solution
The fourth proportional to 145,822.26, 201,234.70 and 78,754.26 is: 108,680.87
Step by Step Solution
- Step 1: Write the proportion equation
145,822.26 : 201,234.70 = 78,754.26 : x - Step 2: Convert to fraction form
145,822.26/201,234.70 = 78,754.26/x - Step 3: Cross multiply
145,822.26x = 201,234.70 × 78,754.26 - Step 4: Simplify right side
145,822.26x = 15,848,089,884.82 - Step 5: Solve for x
x = 15,848,089,884.82/145,822.26 - Step 6: Final answer
x = 108,680.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.